| Serie 1 V.V. +0.0 |
| Mateo Fernández Oneto | Universidad Católica | 3 | 22.63 | 1 q |
| Vicente Andrés Lara Yanine | Atlético Quilamapu | 5 | 22.88 | 4 q |
| Jose Tomas Ramirez Gaudlitz | Manquehue | 4 | 23.02 (23.0200) | 5 q |
| Jose Tomas Leon Lindh | Universidad Católica | 6 | 23.39 | 11 |
| Matias Vicente Areyuna Tejeda | Nilda Rojas | 1 | 24.37 | 23 |
| Patrick Devilat Necochea | Universidad Católica | 2 | 24.46 | 25 |
| Martin Casali Irarrázabal | Manquehue | 7 | DNS | |
| Serie 2 V.V. +0.9 |
| Domingo Iglesis Lagarreta | Manquehue | 3 | 22.84 | 3 q |
| Vicente Ignacio Ross Uribe | Atlético Atacama | 5 | 24.00 | 20 |
| Agustín Claverie Montero | Manquehue | 2 | 24.02 | 21 |
| Ignacio Miranda Vera-Pinto | Deportivo Escolar Academia Iquique Bajo Molle | 7 | 24.61 | 26 |
| Joaquín Carrasco Olivares | San Ignacio | 1 | DNS | |
| Maximiliano Matta Schilling | Manquehue | 4 | DNS | |
| Maximiliano Rodrigo Torres Araya | Atlético S-2000 | 6 | DNS | |
| Serie 3 V.V. +0.0 |
| Lucas Moreno Tagle | Atlético Santiago | 7 | 22.71 | 2 q |
| Cristobal Godoy Villanueva | Atlético Manuel Larraín | 5 | 23.14 (23.1400) | 7 q |
| Julian Alberto Ávila Campos | Atletismo Linares | 3 | 23.14 (23.1400) | 8 q |
| Facundo Vidal Garcia | Universidad Católica | 4 | 23.35 | 10 |
| Cristobal Keim Leon | Deportivo DSO | 6 | 23.60 | 14 |
| Vicente Vidal Valles | Manquehue | 2 | 23.67 | 16 |
| Joaquín Herrera Hughes | Club Atlético Formativo Talca | 1 | 24.45 | 24 |
| Serie 4 V.V. +0.7 |
| Tomás Arenas Kutz | Atlético Santiago | 7 | 23.20 | 9 |
| Guido Brufau Pierini | Universidad Católica | 4 | 23.44 | 12 |
| Mateo Andrés Robles Yañes | Deportivo Sangre Diaguitas | 5 | 23.64 | 15 |
| Juan Ibañez Larrain | Universidad Católica | 2 | DNS | |
| Franco Antonio Stefoni Alcayaga | Universidad Católica | 3 | DNS | |
| Matias Alejandro Meliñir Beroiza | Atlético Municipal Temuco | 6 | DNS | |
| Serie 5 V.V. +0.0 |
| Tomas Peñaloza Pavez | Atlético Rancagua | 7 | 23.02 (23.0200) | 6 q |
| Victor Llanos Angulo | Atlético Comunitario de Imperial | 6 | 23.45 | 13 |
| Franco Sotelo Duhalde | CDSC Atlético CAF la Unión | 3 | 23.74 (23.7400) | 17 |
| Maximo Andres Altamirano Alarcon | Atlético Limache | 5 | 23.74 (23.7400) | 17 |
| Lucas Matias Vidal Briceño | Atlético Real Alemania - Calama | 4 | 23.83 | 19 |
| Martín Emilio Mercado Duarte | Atlético Limache | 2 | 24.06 | 22 |
